Hot Rod Magazine has been in print since 1948, and has over 650,000 readers. The magazine has long been an authoritative source of information on performance cars, featuring technical information, industrycommentary and stories on new trends. Auto World has taken the cars right off the covers of this legendary magazine, and into the ThunderJet line of slot cars!Auto World's ThunderJet Ultra-G cars feature a special neodymium traction magnet on the underside of the chassis. This additional component smoothes handling, and allows for faster speeds in the corners.